Ultra Fine Film Protection: Pro-Ferrum is designed to adhere to sprayed surfaces leaving a protective film inside and outside the barrel. Water-Encapsulating: Pro-Ferrum emulsifies and lifts water from applied surfaces. Incredible Cleaning Properties: Pro-Ferrum is so thin it penetrates and removes fouling and residue in seconds, suitable for rifles and shotguns. Versatile Lubrication Properties: Pro-Ferrum doesnt bind with grit or sand to form an abrasive compound.